That would be most favorable indeed.
Temporal AA is good for something in sci-fi setting with tons of metallic/plastic surfaces and not so high amount of motion in the scene. Most of the ghosting issues can be minimized in this case.
Instantly breaks for anything natural with foliage or something fast-moving though.
The problem is not that temporal AA is bad, on the contrary, it is unmatched in certain cases. The problem is that number of situations where TAA is absolutely unacceptable is too high to leave it the only solution. FXAA alone is frankly a bit outdated to cover the holes. This is where SMAA and T+SMAA would shine.
But I guess that talk belongs to numerous other topics about TAA, this thread initially seemed to be about FXAA.